The vibrio bacteria are :

Options

A. rod - shaped
B. spiral - shaped
C. comma-shaped
D. spherical - shaped

Explanation

**Step-by-Step Solution:**

1. **Understanding Vibrio Bacteria**: Vibrio bacteria are a type of bacteria that are known for their unique shape. They are commonly associated with waterborne diseases.

2. **Identifying the Shape**: The question specifically asks about the shape of Vibrio bacteria. Among the options provided (road-shaped, spiral-shaped, coma-shaped, and spherical-shaped), we need to identify which one accurately describes Vibrio bacteria.

3. **Recognizing Vibrio Cholera**: Vibrio cholera is the specific bacterium responsible for cholera disease. It is important to note that Vibrio cholera has a distinct shape that is crucial for identification.

4. **Describing the Shape**: Vibrio cholera is characterized by a comma-shaped appearance. This means that it resembles a curved or bent rod, which is different from the other shapes mentioned.

5. **Conclusion**: Based on the information, the correct answer to the question is that Vibrio bacteria are coma-shaped.

**Final Answer**: The vibrio bacteria are coma-shaped.

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